<template>
  <div>
    <ul><li v-for="(item,index) in list" :key="index">
      {{item}}
    </li></ul>
    <button @click="fn">走一走</button>
  </div>
</template>

<script>
export default {
 data(){
  return {
    list:['帅哥','美女','程序猿']
  }
 },
 methods:{
  fn(){
    this.list.push(this.list[0])
    this.list.shift()
    
  }
 }
}
</script>

<style>

</style>
